Convert Rankine to Kelvin

Simple, fast and user-friendly online tool to convert Rankine to Kelvin ( °R to K ) vice-versa and other Temperature related units. Learn and share how to convert Rankine to Kelvin ( °R to K ). Click to expand short unit definition.

Please select a valid country.
Clear input
   Rankine (°R) =    Kelvin (K)

What is Rankine ?

Rankine (°R) is a unit of temperature measurement used in engineering and thermodynamics, particularly in the United States. It is named after the Scottish engineer and physicist William Rankine.

To understand Rankine:
- The Rankine scale is similar to the Fahrenheit scale but uses absolute zero as its starting point. Absolute zero, the lowest theoretically possible temperature, is defined as 0 Rankine (0 °R).
- Rankine and Fahrenheit scales have the same degree increments, so a temperature difference of 1 °R is equal to a temperature difference of 1 °F.

In everyday terms, Rankine is primarily used in engineering fields where the Fahrenheit scale is used, such as in aerospace, refrigeration, and HVAC (Heating, Ventilation, and Air Conditioning). It provides a way to measure and calculate temperature differences and energy transfers in these applications.

To convert temperatures between Rankine and Fahrenheit:
- To convert from Rankine to Fahrenheit: °F = °R - 459.67
- To convert from Fahrenheit to Rankine: °R = °F + 459.67

Understanding Rankine is important for engineers and technicians who work with temperature-sensitive systems and processes, particularly in industries where precise temperature control and measurement are critical. It allows for accurate calculations and ensures consistency in temperature references across different applications in engineering and thermodynamics.


What is Kelvin ?

Kelvin (K) is a unit of measurement for temperature in the International System of Units (SI), commonly known as the metric system. It is named after the physicist Lord Kelvin, who proposed the scale. Kelvin is widely used in scientific and engineering contexts, especially in fields like physics, chemistry, and astronomy.

To understand Kelvin:
- The Kelvin scale is based on absolute zero, which is the lowest theoretically possible temperature where all molecular motion ceases. Absolute zero is defined as 0 Kelvin (0 K).
- Unlike Celsius and Fahrenheit scales, Kelvin does not use degrees; temperatures are expressed in Kelvins.

In everyday terms, Kelvin provides a precise and absolute measure of temperature that is particularly useful in scientific research and engineering applications. It is often used in contexts where precise temperature control and measurement are critical, such as in laboratory experiments, industrial processes, and space exploration.

To convert temperatures between Kelvin and Celsius:
- To convert from Kelvin to Celsius: °C = K - 273.15
- To convert from Celsius to Kelvin: K = °C + 273.15

Understanding Kelvin is important for scientists, engineers, and researchers who work with temperature-sensitive materials and processes. It allows for accurate calculations and comparisons across different scientific disciplines, providing a universal standard for temperature measurement that is based on fundamental principles of physics.

List of Temperature conversion units
Celsius Fahrenheit Kelvin Rankine